Feeding device.



No. 818,585. PATBNTBD APR. 24, 1906. E. N. TRUMP. FBEDING DEVICE. APPLICATION FILED HARM, 1902.

SHEETS-SHEET v1.

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7W/ TNE SSE S ma dwg/fw 24' ef A TOHNEY PATBNTBD APR. 24, 1906 E. N. TRUMP. PEEDING DEVICE.

APPLICATION FILED MAILII, 1902.

4 SHEETS-SHEET 2 W/TA/ESSES /N VENTO/ A TOHNEY No. 818,585. PATENTED APR. 24, 1906. E. N. TRUMP. FEEDING DEVICE. APPLICATION FILED MAB 11, |002 4 SHEETS-SHEET 3 .Illllllllll s I IIIIIIIII I lllmlml A TOHNEY No. 818,585. PATENTED APR. 24, 1906. E. N. TRUMP.

FEEDING DEVICE.

APPLICATION FILED MAR.11, 1902- 4 SHEETS-SHEET 4.

f QUEI...

4.5M W1/mm.

A TTOHNEY FEDlNG DEVICE.'

Patented April 24, F906.

Application filed Marcil 1l. 1902. Serial No. 97.87.

To /JfZ/ (chr/ni i'. may cmi/fern.:

citizen ot' the l'uited States*y residing at Syracuse` in the rounty oic (ln ndaga and State of New York, have invented a new and usei"ul Feeding Device, of whicl the following is a specification.

Bij.' invention relates to mechanism tor feeding er measuring materials, my objet-t being to provide improved means lior feeding material` so that the rate ot' said feeding may be uniform and readily controlled and regulated.

My inveutit n feeding material against pressure-that is7 for feeding material into'a receptacle which is under pressure greater than the surrounding atmosphere.

l aeeomplish my object by the mechanism illustrated in the accompanying drawings, in whicle Figure l is an elevation of my device, partly in vertieal sectiin. Fig. 2 is a plan View of said derive with the omissien ot' the drivinggear and supplyehiite Fig. 3 is a vertical section on line 3 3 ot Fig Fig -l is a diagrammatic View ol` a` rlie. statafontrclled nietor toi' driving the beveled-geni' mechanism. Fig. 5 Vis a side elevation et" my deyice'prnvided with a movable seal between the leediiig mechanism and the reeeptacle to he ted. Fig. t3 is a top View et' same. Fig. 7 is a horizontal sectinn on line 7 7 ol Fig. 5. Fig. S is a vertieal sectitn on line S S of Fig. 7.- Fig. 9 is a view siinila r to Fig. 5 with the rotatable cylinder and statienary chamber in verti 'al section.

Similar numerals rel'er to througlieut the several views.

The essential t'eature oli my sists in providing means l'ifr rotating a uniss t material having a substantially' constantl similar parts eireiiiul'ereutial dimension at its base. in eoiumeanslerdellecting bmation with adjustable l'roiu the base ot'said rotating mass a required amount olI material at each rotation.

For rotating the material l provide a reeeptacle comprising a yertirally-disprsed envelop or cylinder i and a table or platlorin -t, spaced below the lewei extension ol said envelop. "lhe enrelop and platform are mounted on a vertical xhal'tI 2, haring a step-bearing at 3l and a journabbearing at. 32. (See Fig. l.) rlhis shaft to be. rotated through the roni any suitable source of power, such also eoiuprises means for' invention consl l i l l l l l t l as .a` pressure maintained t rheizstat-controlled motor. Be it known that l, EuwAiiD N. 'lin'nrJ a t l.)

x aud is operated by the rod 'plishing thisI end.

(Shown in Fig. 'llie cylinder er envelop l may advanageiiusly be conical in shape l'or certain inaterials. rl`he means for detlectin."r material trom the base ol' the rotating mass carried in the receptacle is the deflecttr-blade 5, which in Fig. is secured t the supporting-pest ti T, provided with hotes tt. adapted to cooperate with holes l' t the statienary member t() by pin engagement to change the angular pt sitit n of dellecter 5 with respeet to the iadiust l" cylinder l. Aut ther l'tfriu t l`adjustuleut is shown iu Fig. T, where. the dellectiiig-blade 5 is pivotally meuuted aty 9 aud provided with a clamp-serew 2T on the rear extensii'u 28 ot said blade 5. said claiupscre\\' being adapted to engage with the arc-shaped iuember Bti tn secure said dellectar in any desired angular positien, [t is obvious that the changing of the angular positii-n t li the dellector 5 with respect to the radius el' the cylinder l serres to 'ary the distance between the end ol the delleetor aud the axis l' the cylinderA Other means may be employed t'izr aecom- 'lhe delectoi' as shown in the drawings, is adapted t projeet, over table -ft and beneath the l.'wer extension ot cylinder l, clese to the axis ol its rotation, so that when the receptacle is rotated the base or under portion ol' the rotating uniss cv.ntained therein is pared away and dellected from said receptacle into the receiver 16., as shown in Fig, l, or into the stack 25, as

shown in'Fig. tl 'lhe horizontal exteusion et table 4 is greater than the periphery ol' the lower extension ol' the cylinder. 'lhis is t'or the purpi'se t t .supporting tlu` material as ity spreads slightly to its natural slope l'roui ben \ath the lower exteusiizu el' the cylinder.

lu Fig. L) l sho a guard I7. pvotally seeured to the stationary I'raurenorh at le' aud luiyiug piyotally seeured at its l'i'ee end at` 2t) the rod 2l, which is adjustably secured to another statiouary part by the claiup-sei'ew 2;. 'lhis `guard lilies upon the table near its outer periphery and back olI the dellector l'oi' the purpose hereiual't er to be described.

lu Figs, :3 and tl l show the cylinder and table mounted iu operative relationship with a stack 35V -such a stack, l'oil instaiieey as is l'ouud in the drier apparatus illustrated and j deseribed in patenty to me, \'o. 74518923, dated 2 is adapted gears 13 ard January i 1904. 'lliis patent, is rel'eired to as describing a receptacle in which there isa greaterthan the sur- IOO rounding atmosphere. Ji/'ere it attempted l to feed such s stack with powdered material in the ordinary wey the same would be in most cases blown from the intake-opening of the stack by the pressure maintained in said stack-l l have therefore, as shown in Figs. 5 and 9, provided a chamber 30 for inolosing the table and the lower" part of thefcylinder with the intakoaperture ot the stack, and since the steek is stationary andthe table and cylinder rotated I have provided s movable seal between said stationary surrounding chu f `iber and the movable cylinder. This movable seal consists in the annular channel 23, which is secured to the stationery chamber 30, and the annular iiange 24, which is se- .cured to the rotating cylinderl and ads ted "to project.downwardly into.' the charme By supplying' said chsnnei 23 with Water oi.' other suitable substance an effective inov- :ible seal provided between said chamber 3() :ind cylinder 1.

To the under side of the table or plstform 4 see Fig. Q) is secured. the scraper 33, adapted to rotate with the platform and sweep the bottoni oi the inclosing chamber 30. By this means nnttorinl which moy, in en v wey Work to .the bottom of chamber 30 will be swept i lto the stack 25.

Materiel is introduced into the stack b v the chute 15 or other suitable means. t espcciall;7 to be noted that the dimensions of thel cylinder with respect to the amount that con be deilcctcd therefrom with each rotation are such as to maintain a nuiss of material oi suflicient bulk or Weight to counteract the pressure existing at the intake-port of the steek and at the sii-me time to provide a reserve store of 'material which Will allow fluctuations in the rate of supply from the chute without affecting the rate of feed from. the rotating mass; Y

The 'operation of rny device is as follows: Assuming,r that material has been introduced into the cylinder l and the cylinder rotated, the (lclleetor 5 is adjusted to encounter with each rotation thereof the desired portion of the rotating materiel to divert it Jrorn beneath the cylinder and over the edge of the tzt-ble into the sta-eli or other suitable receiver. The operation is like a cutting-tool turning a groove into a piece ot wood on e, lathe; lt peels out a section oi5 the material as the rnatei-Lil is revolved against it. As the rotating` 'material is encountered bv the deflector, a space is left behind the deiloctor correspond ing to its vertical dimension and of such width, es the consistency of the material will support a bridge over the space left by the y'ilelltmtor. W'lxen, the liniit ot this supporting?,` )ower ol the materiel, due to its cohesion, has been roiufluiihthe bridgebreaks and the superimposed `materiel settles down to iill the in the felling of ls-ll the su erimposed Imst@ riai, end conse uently resu` ts in an intermittent cleavage o seid material throughout its verticsl extension over said space left by the detlector. This insures by a constant, inter inittent, and equal settling oi the material a constant agitation of the seme in the receptacle. This constant agitation, as above stated, prevents the mess of material from caling or sticking to the sides end aise tends to maintain an even distribution ofY said msn terisl in the receptacle.

The rotatin r of a receptacle comprising an envelo and piatform positioned as above describe( is on improvement over `that forni of' feeding device in which an envelop or hop er is maintained stationary With e table or p atforin rotating beneath it, This is because the element of friction between the material and the wells of the envelop is eliminated, and consequentlys less power is required to main tain the rotation of a whole mass. A positive rotation of the materialagsnst the delector is assured and a more constant'eed is secured. Another distinct advantage resulting from the rotation of the entire mass of-msteriel with the envelop is that the onlv moved ment cic the 'materia-l inde endent oi the receptaoie is the setting behind thedeeetor, asA above described-that is, after this st ttlrngI the material remains at rest with respecttoy ssid reccpaele until encountered by the de.-

lector. here however, the hopper-orcylncler is stationary While the base rotates there is a constant movement of the material around the entire circumference. of the cylinder, due ,to the friction between the. movin materiel and the stationery material, whic results in a greatly-increased variation of naturel slope of ieterisl. This in no inconsidereble degree affects the. accuracy of the IDO feed. The guard 17 (shown in Fig. 2') issy f advantageously be employed in connectlon. with the use of some materials to check the spread of material as the same falls byitho breaking ol' the bridge just to the rear of the delector.

' ural slope ere so inappreciable in'coiuparisoni` with the tot-sl volume of the material res` .moved tiret the total discharge 1s' rzunticsllltv uniform.. The importance of'suc a-res t space lelt behind the ,dellector his falling engem@ apparenpwhenit i@ .desired to feed ial lto fili saisi space results i. 'materiel into e treating agente-forinstance,

IIO

ige

in connection with a drier-stack, such as dc- `scribed in mju patent above referred to, where it is access-amV to maintain an accurate adliusttnent between the vclocitl of the treating agent and the rate of feed of material thereto. 'l`li-is importance is emphasized where large quantities of material are being treated continnouslv, since by a due relative adjustment of the velocity of thtA treating agent and the rate of feed the maximum ellicicncy of the treating o )eration is rcadil) .secured and ntaintainet.

What l claim is--- l n a feeding device, the combination of mea-.ts for rotating an integral mass of material uh a sithstantiitllv constant circumferential dimension at its base, and dellecting means proiecting into said base` L.` in a feeding device, the combination of means for rotating an integral mass of material with a substantiallvv constant circumfcr' entiai dimension at its base, and adjnstahly- .stupported dellccting means projecting into said baseA I. ln a feeding device, the combination of a rotatahie receptacle for materiai com )rising a tvlindcr and a tablespaeed hcneat 1 its lower edge, said tabhl having e. diameter eX- cccding that of the c vlinder snfiicicnt to support the naterial at. natural slope, and means tor dellccling from v-fi hin theI cylinder the under portion of the rotating material.

4. ln a feeding device, the combination of a rotatable receptacle for dry granular or powdered material comprising a cvlinder and a table spaced beneath its lower edge. said table having a diana-ter exceeding that of the cylinder sullicient to support the material at 4natural slope, and means for detlecting from within the c vlindcr the under portion ofthe rotating material.

in a feeding device, the combination of a rotatable receptacle for n'iaterial cotti irising a c vlindcr and a table spaced hencatit its lower edge, said table having a diameter exceeding that of the cylinder sullicient to support the material at natural slope, aml adjastabltv supported means for tlellecting from within thc cylinder the under portion of the rotating material.

t3. ln a feeding device, the eontttination of a rotatable receptacle, comprising ai. envelop and a platform spaced beneath the lower cxttension thereof, and an adjustablv-snppor'ted lellector projet-tine between the platform and the envelop, tie proportions and )ositions relativelyr of the envelop, the platform and the detlector, being such that the amount ot material deflected, with each rotation ot' the receptacle, shall so preponderate the variation of deflection. due. to the variation in the natnral slope of materialI as to render such variation inappreciable.

T. .ln combination wit-h a stationary receiving device having an intake-port, a feeding device therefor, comprising a rotatable receptacle, formed b v an envelop and a platform spaced below the lower extension thereof, and means for dellectingr material .therefrom to the receiving device, a chamber for inclosing said intake-port and a movabl seal arranged between thc inclosing chamber and the rotatable receptacle.

S. lu combination with a stationary receiving device having an intake-port, a feeding device therefor, comprising a rotatahte receptacle, formed by an envelop and a platform spacedl below the lower extension thereof, and means for defleeting material therefrom to the receiving device, a chamber inclosing said intaketort, and a movable seal arranged between the inclosing chamber and the rotatable receptacle, and a `scraper rotating beneath the platform, for sweeping the bottom of the inclosing chamber.

t). ln combination with a receiving device' having a material-intake port` such as a staclt under pressure above atmosphere,-

means for feeding material thereto, comprising a rotatable receptacle` formed bv an envelop and a platform s mecd below the lower extension thereof, antf means for detlecting the material therefrom to the stack, said envelop having a vertical extension sullicient to maintain a mass of material above said intake-port sullicient to counteract the Said pressure.

ttl. in combination with a receiving device having 'a material-intake port` such as a stack under iressnre above atmosihere means for feeding material thereto, comprising a rotatable receptaclel formed bv an envelop and a platform spaced below the lowerf extension thereof, and means for dcllecting the material therefrom to the stack, said envelop having a vertical extension snllicient to maintain a mass of material above intakeport sutlicient to counteract said pressure, a chamber int-losing said intake-port and a movable seal between the int-losing chamber and the rotatable receptaclev ll. in a feeding device the combination of a rotatable receptacle, comprising an envelop and a platform spaced below the lower extension thereof, means for dellccting the under portion of the uniss of material rotated. tliercbv, a receiver fo'r said deflected material, a chamber inclosing the aperture of the receiver, the olatforn-i and thc lower mrtion of the envelcg an annular channel and an annular llangc adapted to project therein. secnrcd between the int-losing chamber and the rotating envelop lo maintain a movable seal IXO 

